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Pig’s-foot Grease.

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—A special variety of grease is made from pigs’ feet as a by-product in the glue factory. This grease is used also in making lard oil and soap. It is evident that these varieties of grease are only inedible varieties of lard, and through proper inspection the public is protected against the use of these varieties of grease in the edible product.

Foods and Their Adulteration

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